Home / 28,702.76-43,062.30-11,177.60

Finding the Fourth Proportional to 28,702.76, 43,062.30 and 11,177.60

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Solution

The fourth proportional to 28,702.76, 43,062.30 and 11,177.60 is: 16,769.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,702.76 : 43,062.30 = 11,177.60 : x
  2. Step 2: Convert to fraction form
    28,702.76/43,062.30 = 11,177.60/x
  3. Step 3: Cross multiply
    28,702.76x = 43,062.30 × 11,177.60
  4. Step 4: Simplify right side
    28,702.76x = 481,332,949.17
  5. Step 5: Solve for x
    x = 481,332,949.17/28,702.76
  6. Step 6: Final answer
    x = 16,769.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.